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French alchemist (1510–1567)
For the American actor, see Robert Duvall.
Robert Duval (c. 1510–1567), also referred as Robertus Vallensis, was a French alchemist. In 1886, John Ferguson stated that the De veritate et antiquitate artis chemicae by Duval stands out as 'the first history of chemistry.' This work was published in 1561, in Paris.
References
John Ferguson, The First History of Chemistry, Proceedings of the Royal Philosophical Society of Glasgow 17 (1885–1886): 206-22.
Barbara Obrist, 'Views on History of Medieval Alchemical Writings', Ambix 56, November 2009, 226-238.